Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A wireless transmit receive unit (WTRU) comprising: a processor configured to: determine a quality of service (QoS) requirement associated with a sidelink transmission; determine that one or more resources configured for sidelink communication are unavailable for the WTRU to perform the sidelink transmission according to the QoS requirement; and send a report to a network, wherein the report comprises measurement information associated with resources configured for sidelink communication and wherein the report excludes measurement information associated with the one or more resources determined to be unavailable for the WTRU to perform the sidelink transmission according to the QoS requirement.
2. The WTRU of claim 1 , wherein the processor being configured to determine that the one or more resources configured for sidelink communication are unavailable for the WTRU to perform the sidelink transmission according to the QoS requirement comprises the processor being configured to: receive a message from another WTRU; and determine, based on the message, that the one or more resources configured for sidelink communication are unavailable for the WTRU to perform the sidelink transmission.
3. The WTRU of claim 1 , wherein the processor is further configured to perform measurements on the resources configured for sidelink communication over a preconfigured period of time.
This invention relates to wireless communication systems, specifically improving sidelink communication in wireless transmit/receive units (WTRUs). The problem addressed is the need for efficient resource management and measurement in sidelink communication, which enables direct device-to-device communication without relying on a central network. The invention involves a WTRU with a processor configured to manage sidelink communication resources. The processor selects resources for sidelink communication based on predefined criteria, such as resource availability, interference levels, or quality of service requirements. Additionally, the processor performs measurements on these resources over a preconfigured period of time to assess their suitability for ongoing or future sidelink transmissions. These measurements may include signal strength, interference levels, or other performance metrics to ensure reliable communication. The system dynamically adjusts resource allocation based on the measurement results, optimizing communication efficiency and minimizing interference. This approach enhances sidelink communication reliability and efficiency in scenarios like vehicle-to-everything (V2X) or device-to-device (D2D) communication, where direct communication between devices is critical. The preconfigured measurement period ensures timely adjustments without excessive overhead, balancing performance and resource utilization.
4. The WTRU of claim 1 , wherein the report further indicates respective indices associated with the resources included in the report.
5. The WTRU of claim 1 , wherein the processor is further configured to receive configuration information associated with the report and send the report based on the configuration information.
A wireless transmit/receive unit (WTRU) is configured to generate and transmit a report containing information about a wireless communication environment. The WTRU includes a processor that collects data related to signal quality, interference levels, or other relevant metrics from the wireless environment. The processor then processes this data to generate a structured report. The report may include measurements such as signal strength, channel quality, or interference patterns, which are useful for network optimization and resource allocation. The WTRU is further configured to receive configuration information that specifies parameters for generating and transmitting the report. This configuration information may include timing intervals for report generation, data formats, or transmission protocols. The processor uses this configuration to customize the report before sending it to a network node, such as a base station or a network controller. This ensures that the report is transmitted in a standardized and efficient manner, allowing the network to analyze the data effectively. By dynamically adjusting the report generation and transmission based on the received configuration, the WTRU enables more accurate and timely network monitoring, improving overall communication performance. The system is particularly useful in environments where real-time adjustments to network parameters are necessary to maintain optimal service quality.
6. The WTRU of claim 1 , wherein the QoS requirement is determined based on configuration information associated with sidelink communication.
7. The WTRU of claim 1 , wherein the sidelink transmission is a unicast transmission.
A wireless transmit/receive unit (WTRU) is configured to perform sidelink communications, which involve direct device-to-device (D2D) transmissions without relying on a central network infrastructure. This technology is particularly useful in scenarios where network coverage is limited or unavailable, such as in public safety, vehicular communications, or industrial IoT applications. The challenge in such systems is ensuring reliable and efficient data transmission between devices while managing resources like bandwidth and power. The WTRU includes a processor and a transceiver to facilitate sidelink transmissions, which can be unicast, multicast, or broadcast. Unicast transmissions are directed to a single recipient device, ensuring secure and dedicated communication between two devices. This is critical for applications requiring privacy, such as private messaging or secure data exchange in industrial environments. The WTRU dynamically selects transmission parameters, such as modulation and coding schemes, to optimize performance based on channel conditions and device capabilities. Additionally, the WTRU may implement synchronization mechanisms to coordinate transmissions with neighboring devices, reducing interference and improving overall network efficiency. Error detection and correction techniques are also employed to enhance reliability in challenging radio environments. The system may further support resource allocation schemes, allowing devices to share available spectrum efficiently while avoiding conflicts.
8. The WTRU of claim 1 , wherein the report is sent via RRC signaling.
9. A wireless transmit receive unit (WTRU), comprising: a processor configured to: receive configuration information indicating that the WTRU is to report measurement information associated with sidelink communication; perform measurements on a plurality of resources configured for sidelink communication in response to receiving the configuration information; determine that one or more of the plurality of resources are available for sidelink transmission based on at least a control message received by the WTRU; and send a report to a network based on the configuration information, wherein the report comprises measurement results associated with the one or more of the plurality of resources determined to be available for sidelink transmission.
10. The WTRU of claim 9 , wherein the processor being configured to perform measurements on the plurality of resources comprises the processor being configured to perform measurements on the plurality of resources over a time period.
11. The WTRU of claim 9 , wherein the time period comprises a plurality of subframes.
A wireless transmit/receive unit (WTRU) is configured to manage communication resources in a wireless network, particularly in scenarios where the WTRU operates in a discontinuous reception (DRX) mode to conserve power. The WTRU monitors a control channel during active periods to receive scheduling information for uplink or downlink transmissions. To optimize resource usage, the WTRU is further configured to determine a time period for monitoring the control channel, where this time period is divided into multiple subframes. Each subframe represents a discrete time interval within the overall monitoring period, allowing the WTRU to efficiently allocate its processing and power resources. The division into subframes enables precise synchronization with the network, reducing unnecessary power consumption while ensuring timely reception of scheduling commands. This approach is particularly useful in systems where the WTRU must balance power efficiency with the need to promptly respond to network instructions. The WTRU may adjust the number or duration of subframes based on network conditions or operational requirements, ensuring flexibility in resource management. The subframe-based monitoring period enhances the WTRU's ability to efficiently handle varying traffic loads and network demands.
12. The WTRU of claim 9 , wherein the report is sent to the network periodically based on the configuration information.
A wireless transmit/receive unit (WTRU) is configured to generate and transmit a report to a network, where the report includes information about the WTRU's operational state or environmental conditions. The WTRU receives configuration information from the network, which specifies parameters for generating and sending the report, such as the type of data to include, the format of the report, and the conditions under which the report should be generated. The WTRU monitors its operational state or environmental conditions, such as signal strength, interference levels, or battery status, and generates the report based on the monitored data and the configuration information. The report is then transmitted to the network periodically, according to the timing specified in the configuration information. This periodic reporting allows the network to dynamically adjust its operations, such as resource allocation or handover decisions, based on the received reports. The WTRU may also adjust its own operations based on the configuration information or feedback from the network. The system ensures efficient communication and resource management in wireless networks by enabling real-time monitoring and adaptive adjustments.
13. The WTRU of claim 9 , wherein the processor is configured to receive the control message via a sidelink control channel.
A wireless transmit/receive unit (WTRU) is configured to communicate with other devices in a wireless network, particularly in scenarios where direct communication between devices is necessary, such as in vehicle-to-vehicle (V2V) or device-to-device (D2D) communication. A key challenge in such systems is efficiently transmitting control messages to coordinate communication between devices, ensuring reliable and low-latency data exchange. The WTRU includes a processor that receives a control message from another device via a sidelink control channel. This channel is a direct communication link between devices, bypassing the need for a central network infrastructure. The control message may contain scheduling information, resource allocation details, or other coordination data required for sidelink communication. By receiving the control message over the sidelink control channel, the WTRU can dynamically adjust its communication parameters, such as transmission power, timing, or frequency resources, to optimize performance and avoid interference with other devices. The processor may also be configured to process the received control message to extract relevant information and apply it to subsequent transmissions or receptions. This ensures that the WTRU operates in sync with other devices, maintaining efficient and reliable sidelink communication. The use of a dedicated sidelink control channel allows for faster and more flexible communication compared to traditional network-controlled methods, making it suitable for applications requiring real-time coordination, such as autonomous driving or emergency response systems.
14. The WTRU of claim 9 , wherein the report comprises respective indices associated with the one or more of the plurality of resources determined to be available for sidelink transmission.
15. A method implemented by a wireless transmit receive unit (WTRU), the method comprising: receiving configuration information indicating that the WTRU is to report measurement information associated with sidelink communication; performing measurements on a plurality of resources configured for sidelink communication in response to receiving the configuration information; determining that one or more of the plurality of resources are available for sidelink transmission based on at least a control message received by the WTRU; and sending a report to a network based on the configuration information, wherein the report comprises measurement results associated with the one or more of the plurality of resources determined to be available for sidelink transmission.
16. The method of claim 15 , wherein performing measurements on the plurality of resources comprises performing measurements on the plurality of resources over a time period.
17. The method of claim 15 , wherein the report is sent to the network periodically based on the configuration information.
18. The method of claim 15 , wherein the report comprises respective indices associated with the one or more of the plurality of resources determined to be available for sidelink transmission.
19. The WTRU of claim 9 , wherein the determination of whether the one or more of the plurality of resources are available for sidelink transmission is based further on a measured energy level associated with the one or more of the plurality of resources.
20. The method of claim 15 , wherein the determination of whether the one or more of the plurality of resources are available for sidelink transmission is based further on a measured energy level associated with the one or more of the plurality of resources.
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February 23, 2021
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